baber/WOPTO huggingface dataset:
Patent GB-499671-A (GB)
Title: Process for curling regenerated cellulose fibres
IPC: G01N11/16
Filed: 1937-08-13
Abstract: <PICT:0499671/IV/1> The thread bundles issuing from a viscose spinning bath are stretched while in a strongly acid state, de-acidified by treatment with liquid having a temperature of 90-100 DEG  C. while they are further stretched in two or more stretching roller units, and fed under tension to a cutting device where they are cut to staple length while surrounded by another liquid kept at 90-100 DEG  C.  The latter liquid may be a desulphurization or other after-treatment liquid, or the after-treatments may be applied to the stretched filaments between the de-acidifying and cutting stages. Jets of the hot liquid may serve to maintain the tension of the filaments as they are fed to the cutter.  In the form shown, the thread bundle 1 is stretched between rollers 2, or by stretching bars.  The thread bundles are fed over stretching rollers 3 and de-acidified by hot liquid from nozzles 4.  The bundles then pass over delivery members 5 and through a funnel to a rotary cutter 6, a jet of hot liquid 7 being supplied to the funnel.
Patent GB-665554-A (GB)
Title: Improvements in or relating to a method of making magnetic material
IPC: G11B5/706
Filed: 1948-08-25
Abstract: A magnetic material suitable for the production of coated or impregnated record tapes &c. is produced by reducing an initially non-magnetic ferric oxide having a particle size not exceeding six microns in its greatest dimension at 400-1000 DEG F.  Reduction may be effected by hydrogen, carbon monoxide, sulphur, sodium acetate, pyrogallol &c.  Hydrated acicular Fe2O3 or anhydrous ferric oxide may be employed.  Water vapour may be mixed with the hydrogen employed. The reduced black oxide may be reoxidized in the presence of oxygen at 300-900 DEG F to yield magnetic g -ferric oxide.  In an example, Fe2O, H2O nuclei are prepared by agitating mixed solutions of caustic soda and ferrous sulphate for 17 hours in the presence of air, and the nucleating material is then mixed with ferrous sulphate solution and scrap iron, and air bubbled through at 140 DEG F.  The dried material is then tumbled in hydrogen at 750 DEG F till nearly black. The temperature is finally reduced to less than 70 DEG F before air is readmitted.  The magnetic properties of the various products are indicated.
Patent GB-836928-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal aluminium fluorides
IPC: C01F7/54
Filed: 1957-07-15
Abstract: Sodium or potassium aluminium fluoride (cryolite) is prepared by continuously mixing sodium or potassium silicofluoride and/or fluosilicic acid with aqueous sodium or potassium carbonate, separating the precipitated silica, mixing the remaining solution of alkali metal fluoride with the corresponding alkali metal aluminate, passing in carbon dioxide to precipitate the cryolite, and recycling the residual liquor containing carbonate and bicarbonate for reaction with the silicofluoride material.  In the reaction to form the fluoride an excess of 5-8% carbonate or bicarbonate over that required stoichiometrically is preferred at a temperature of 60-95 DEG  C. and to a pH of 7-8.  A flocculating agent may be employed. Fluosilicic acid if used as the starting material may alternatively be first transformed into alkali metal silicofluoride.  The alkali metal aluminate is used in quantities to provide an excess from 10% aluminium to 10% fluorine based on the composition of cryolite and may be obtained, e.g. in the Bayer process, by dissolving scrap aluminium in caustic soda solution, by reacting hydrated or anhydrous alumina with caustic soda or soda ash or preferably by leaching crushed and ground carbonaceous pot linings which have been used in the electrolytic production of aluminium with caustic soda solution at 60-95 DEG  C.; such leach liquors will also contain sodium fluoride.  The carbon dioxide used may be flue gases, gas resulting from a subsequent step where the cryolite product is calcined at 500-700 DEG  C., or may be the carbon dioxide recovered from the reaction of the silicofluoride material with the carbonate solution; carbonation is preferably continued to a pH of 8.0-10.0 at 30-70 DEG C.  Details of preferred conditions are given in examples, in which various methods of recycling the carbonate liquor are described; part of said liquor may be used after causticising to give sodium hydroxide to react with alumina and/or pot linings to provide the sodium aluminate. The silica precipitate may be flocculated by adding a substituted guanidinium carbamate.
Patent GB-911857-A (GB)
Title: Liquid applicators for applying liquid to animals
IPC: A01K13/00
Filed: 1961-06-22
Abstract: 911,857. Treating animals with insecticides. PIEL, A. J. June 22, 1961, No. 22657/61. Class 5(1). Apparatus for applying liquid to animals comprises a cable 10 anchored to a ground frame 29 and passing over a sheave attached to the cylinder of a pump located in the upper part of a liquid reservoir 27. Spool units 12 are threaded on the cable with the upper end 14 of each unit extending into a recess 13 in the lower end of the unit directly above it. Each unit 12 is provided with transverse walls 22, 23 to form pockets 20 in which liquid may be trapped, the walls being provided with passages 25, 26 respectively. When an animal rubs against the units 12 to tension the cable and actuate the pump, liquid is supplied to the top of the cable, and passes into the uppermost unit 12. As the units are rotated some liquid passes through the passages 25, 26 and seeps between the parts 13 and 14 on to the outer surface of next lower unit while the remaining liquid flows along the cable into the next lower unit.
Patent GB-776718-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04B2/30
Filed: 1955-08-05
Abstract: 776,718. Building blocks. SCHINDLER, F. Aug. 5, 1955 [Aug. 17, 1954], No. 22671/55. Class 87(1) A building block, Fig. 1, comprising two slabs 1, .1<SP>1</SP> of gas silicate or foam concrete connected by two or more webs 2, 2<SP>1</SP>, is assembled by placing the slabs and webs edgewise into the grooves 6, 6<SP>1</SP>; 9, 9<SP>1</SP> in the jig 8, Fig. 2, and then connecting the slabs and webs by pairs ot staples 3, 3<SP>1</SP>; 10, 10<SP>1</SP>, or by nails 4, 4<SP>1</SP>, dowels or screws. The webs are dipped into a bituminous mass before assembly, and the outer slab may be provided with closable vents (not shown).
Patent GB-911696-A (GB)
Title: Converters for steel manufacture
IPC: C21C5/42
Filed: 1960-06-29
Abstract: 911,696. Converters. ARBED ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE S.A. June 29, 1960 [July 13, 1959], No. 22731/60. Class 72. A steel converter of the type which has a wall connecting the bottom, which may or may not be provided with tuyeres, with the dome, in which is arranged a lance for top blowing, has at least part of its bore between the trunnion axis and the dome upwardly divergent while the rest below the dome is cylindrical, as in Fig. 3, or downwardly convergent, thus making the whole of the bore below the dome upwardly divergent as in Fig. 1 (not shown). The surface of the lining surrounding the divergent part may be a surface of revolution, e.g. frusto-conical, preferably having an angle of divergence of over four degrees ; the angle may increase upwards. The refractory lining around the bore may be thicker above the trunnion axis than below.
Patent GB-278331-A (GB)
IPC: B26B21/00
Filed: 1927-08-30
Abstract: 278,331. Riviere, M. L. Sept. 30, 1926, [Convention date]. Razors, safety.-A safety razor comprises a handle 1 to the ends of which two blade-holders and blades 2, 3 (usable alternatively) are jointed so that they may be folded flat against the handle, a cover-plate 5 being pivoted centrally on the handle so that it may be moved to cover either blade &c. in the folded position at will. Each blade-holder &c. is so jointed that it may be turned outwards from the handle to shaving position, Fig. 2, or turned to the position shown in Fig. 3 to facilitate stropping &c. The handle may be in two parts centrally hinged so that they may be folded together, and in this case the cover plate may be hinged on the same hingepin, or two hinged cover-plates may be provided. The blade-holder units are preferably of the construction described in Specification 13629/14.
Patent GB-768233-A (GB)
Title: Improvements in or relating to the manufacture of steel
IPC: C21C5/38
Filed: 1953-08-18
Abstract: 768,233. Heating steam boilers or air heaters by waste gases. WAAGNER-BIRO AKT.-GES. Aug. 18, 1953 [Feb. 12, 1953], No. 22791/53. Classes 64(3) and 123(2) A waste heat boiler 1 or an air heater is heated by gases generated in a Bessemer converter 3 during the blasting operation of the latter, a gas or oil-fired burner 2 being brought into operation when the converter is being charged or discharged to prevent the cooling of the boiler or air heater during these periods. The gases from the boiler or air heater pass either directly to the stack 7 or, by closing a damper 11, are diverted through a spray washer 8 and fan 12. The burner 2 may be dispensed with when several converters are operated in sequence to provide a substantially continuous flow of heating gas.
Patent GB-1493308-A (GB)
Title: Fuel injection system for a multicylinder type internal combustion engine
IPC: F02D41/02
Filed: 1975-05-23
Abstract: 1493308 Controlling fuel injectors NISSAN MOTOR CO Ltd 23 May 1975 [1 June 1974] 22795/75 Heading F1B To supply excess air to a catalytic converter 24 during 'warm up', injectors are sequentially disabled so that the associated cylinder may act as an air pump. When the engine temperature as sensed by a sensor 50, Fig. 1, lies within a range defined by comparators 58, 62 (10‹C to 30‹C) the AND gate 48 is disabled preventing the fuel injector actuation signal from generator 44 from opening the electronically operated injector 30, cylinder 1 acting as an air pump. As shown in Fig. 2 logic circuitry applies the disabling signal sequentially to each injector when an output from AND gate 104 is produced by the comparators in the required temperature range. The sensor 50 is arranged to be isolated during starting by a solenoid switch Fig. 3 (not shown) which opens line 52 when the starter motor switch is operated.
Patent GB-863795-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C3/04
Filed: 1957-07-18
Abstract: 863,795. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G. July 18, 1957 [Aug. 16, 1956], No. 22823/57. Class 144 (2). A pneumatic tyre having a tread surface 4 which is radially outwardly bowed in transverse section, is provided with a circumferential breaker band 5 of one or more layers of parallel inextensible tensile or metallic cords which are inclined to the mid-circumferential plane of the tyre, the band 5 extending, in transverse section, either parallel to the tyre axis or in a radially inwardly bowed path whereby in the region of the ground-engaging portion 4<SP>1</SP> of the tread when under radial load the breaker is bowed radially inwardly, as shown in Fig. 2, to tension the cords thereof against deformation by lateral forces acting on the tread. The breaker may have a cord angle of 18-35 degrees and the lateral edges 6 of the layers may extend radially into the tyre sidewalls. The carcase may comprise a radial cord structure.
Patent GB-999547-A (GB)
Title: Improvements relating to waste traps for sinks
Inventor: FERRY GEORGE HUGH
IPC: E03C1/284
Filed: 1963-06-07
Abstract: 999,547. Waste-traps. KAUTEX PLASTICS Ltd. May 12, 1964 [June 7, 1963], No. 22845/63. Heading E1C. A waste-trap comprises a container 1 for liquid with an open end adapted to receive a removable cover 2 having an inlet 3, e.g. a tube, and an outlet 4, e.g. a tube, for waste liquid, connectible respectively to a sink outlet and a drain pipe, the inlet 3 having a tubular extension 8 projecting into the container 1 at a predetermined axially-spaced distance from the outlet 4. The outer ends of the tubes 3, 4 may have coupling means to connect them to the sink outlet and drainpipe. The cover 2 and container 1 may be in synthetic plastics material and may be mouldings, and the cover at least may be transparent or translucent. A sealing ring 7 is clamped between the container 1 and cover 2.
Patent GB-578617-A (GB)
Title: Improvements in or relating to systems for transmitting guided electromagnetic waves
IPC: H01P5/02
Filed: 1943-11-05
Abstract: 578,617. Wave guides. WESTERN ELECTRIC CO., Inc. Nov. 5, 1943, No. 22914/45. Convention date, July 30, 1942. Divided out of 578,597. [Classes 40 (iii) and 40 (v)] Impedance elements for wave guides comprise a slotted transverse obstruction, the height and width of the slots being proportioned to provide resonance. For a rectangular guide 1, Fig. 4, the slot may have height V in the direction of the electric vector E and width W perpendicular thereto. All slots giving parallel resonance have their corners along a curved line 13, and the effective resistance shunted across the guide decreases as the height V decreases. If the resistance is made equal to the characteristic impedance of the guide, the element 11 serves as a reflectionless termination of the guide when followed by a solid partition 15 placed a quarter-wavelength behind the element 11. For a circular guide, Fig. 5, the element may have a rectangular slot into which project screwed studs 17 fitted with adjustable flanged discs 19. For series resonance, the discs are closely adjacent, while for parallel resonance, the spacing is greater and the flanges may be omitted. In Fig. 7, the slot is divided by inward projections 21, 22 which are provided with flanges facing each other. The projections 21, 22 may be fitted with deformable overlapping flaps (Fig. 6, not shown). In Fig. 8, a wave-guide 60 is matched to a wave-guide 61, by an intermediate section 62 of length N equal to a quarter-wave, or an odd multiple thereof. The height of the section 62 is the geometric mean of the heights of the two guides, and the width may be the same for all three. The junction 63 is constricted by the insertion of slats 65, 66 and the junction 64 by slats 67, 68 of such dimensions that each junction functions as a parallel-resonant shunt reactance.
Patent GB-295333-A (GB)
Title: Improvements in folding cameras
IPC: G03B3/02
Filed: 1928-08-09
Abstract: 295,333. I. G. Farbenindustrie Akt.- Ges. Aug. 9, 1927, [Convention date]. Cameras with folding baseboard.-A camera of the kind wherein the lens-carrier is brought into position of use by a system of levers when the hinged baseboard of the camera, is folded down into open position is provided with means for locking the lens-carrier in operative position, comprising a pivoted catch on each side of the hinged baseboard, adapted to be turned, at the end of the opening movement of the camera, into position to engage the lower end of. the lens carrier by projections on the levers which bring the lens carrier into operative position. As shown, the lens-carrier 1 is pivoted at 3 to arms 4 which are pivoted at 5 to the hinged baseboard 6, and are adapted to be erected, when the base 6 is folded down, by the action of links 7 pivoted to the arms 4 and to the baseboard struts 8. Pivoted to the part 10 of the base 6 are spring urged notched catches 9 which are caused bv the engagement of projections 11 on the arms 4 with tails 12 on the catches to rise into position to engage and lock the lower edge 14 of the lens carrier 1 when the camera is opened. The Specification as open to inspection under Sect. 91 (3) (a) refers also to cameras in which the lens-carrier is locked in position of use by the pressure on each other of the levers which serve to erect the lens-carrier. This subjectmatter does not appear in the Specification as accepted.
Patent GB-360022-A (GB)
Title: Improvements in and relating to belt joints
IPC: F16G3/00
Filed: 1930-07-31
Abstract: 360,022. Punching driving belts. HERTEL, A., 3, Zahringerstrasse, Heidelberg, Germany. July 31, 1930, No. 23091. [Class 31 (ii).] In belt joints, holes 7a, 7b, Fig. 2, are punched parallel to the belt ends, slits x connecting one set to the belt end so as to form T-shaped parts 8 to fit into the holes in the other end. The belt end is secured on a frame 1 by clamps 3 and bears against a side stop 14 adjustable laterally by a wedgemember 16. A lazytongs 4 is adjustable by a handle 5 and clamped in position so that its pins 6 may be straddled in turn by a fork 13 on a hand-punch 9, Fig. 3, the end 11 of which is slidable in a groove 12 on the frame. Figs. 4 and 5 show a handoperated machine-tool in which the cutter 36 is operated by a cam 38 on a handle 39, the stroke of which is limited by an adjustable screw 40. The lazytongs 29 is adjusted by a screwed spindle 30 engaging nuts 32 at each end of the tongs, which with the belt is carried on a slide 22 movable laterally on the frame 21. The pins 33 on the tongs engage in turn in the end 34a of the spring-pressed lever 34 carried on the frame, a cam 35 being provided to remove the lever from active position. In this form, the slits x also are cut by an adjustable knife 45 moving with the cutter 36. A plunger 42 held in either an upper position or the lower position shown by a catch on the frame removes the punchedout leather position from the cutter when the latter rises. The belt is positioned laterally by an adjustable bar 24 and longitudinally by a flanged stop 27.
Patent GB-377456-A (GB)
Title: Improvements in reflectors
IPC: F21V7/00
Filed: 1931-08-17
Abstract: 377,456. Vehicle &c. lamps. TRIPPE, G., 1735, Belmont Avenue, Chicago, U.S.A. Aug. 17, 1931, No. 23131. Convention date, June 15. [Classes 75 (ii) and 75 (iii).] Reflectors; mounting reflectors on lamp casings ; vehicle lamp supports.-In a reflector in which an auxiliary reflecting surface covers a portion of the main reflecting surface, the auxiliary reflector is supported from a socket located in the main reflecting surface and is associated with means for maintaining the reflectors spaced apart, the spacing means being formed as spring fingers. The lamp socket 14 is provided with projecting pins 18 adapted to receive projections 19 formed on a spider 20 having spring fingers 21. The auxiliary reflector 23 is attached to the spider by rivets 22 and may be adjusted by a set screw 25 provided in an arm 24 also attached to the socket 14. The auxiliary reflector is approximately semiparabolic but is distorted by a tie wire so as to give a converging beam which is projected into the dark area formed by the image of the socket 14 in the beam from the main reflector 2. Means for adjustably mounting the outer casing 1 on a supporting member comprises attaching members 6 and 10 having recessed portions 12 to receive the supporting member, and an arm 5 similar in contour to the circumference of the member 6 to which it is secured by a bolt 7 in such manner as to be adjustable about the axis of the bolt.
Patent GB-1459894-A (GB)
Title: Spinning or twisting machine with delivery rollers and draw  rollers
IPC: D01H1/28
Filed: 1974-05-23
Abstract: 1459894 Control of a number of AC motors ZINSER TEXTILMASCHINEN GmbH 23 May 1974 [23 May 1973] 23138/74 Heading H2J [Also in Division D1] The delivery roller 1 and draw rollers 3 of a spinning, twisting or winding machine are driven by respective synchronous motors 20 and 3<SP>1</SP>, which are supplied with variable frequency power by a synchronous generator 7 driven by a variable speed D.C. motor 8, an auxiliary drive 11 being provided for the generator to prevent its speed decreasing during the current surge produced when the motors 3<SP>1</SP>, 20 are switched on. In the described embodiment, the drive 11 is an asynchronous motor having a "stiff" speed characteristic and supplied from a control unit 16, which also supplies the motor 8 in accordance with the comparison between the motor speed sensed by a tachometer 15 and a preset desired speed. In a typical starting operation, a switch 17 is closed to allow the unit 16 to run the members 7, 8 up to the speed set for starting the motors 3<SP>1</SP>, 20, the unit 16 also energizing the motor 11 to drive members 7, 8 at this speed. Closure of a switch 18 connects the motors 3<SP>1</SP>, 20 to the generator 7 and also connects asynchronous motors 6 driving the machine spindles 4 to the mains supply (unreferenced) for the unit 16. After the motors 3<SP>1</SP>, 20 have been started, the unit 16 is adjusted to bring them up to operating speed with the motor 11 remaining at its original speed (until it is switched off) through the action of an "overrunning" clutch 10, 13. The motor 11 may be other than asynchronous or may act as or be replaced by a flywheel, coupling between the auxiliary drive and the generator being through a high ratio speed reduction gear.
Patent GB-273122-A (GB)
Title: Improvements in agricultural ploughs
IPC: A01B63/18
Filed: 1926-09-20
Abstract: 273,122. Lister & Co., Ltd., R. A., and Maw, W. G. Sept. 20, 1926. Multiple-furrow ploughs; lifting- devices, power.- Self-lift mechanism for a plough having land and furrow wheels mounted on cranked axles connected together so as to move simultaneously, comprises a vertically arranged rod 9 connected indirectly at one end to the plough frame 10 and at the other end having a longitudinal slot 11 engaged by one of the axles 5 and a transverse slot 8 engaged indirectly by a crank pin 4 on a disc or plate 2 loosely mounted coaxially with the corresponding wheel 6, but adapted to be clutched to it so as to be carried round through half a revolution to raise or lower the plough and then automatically to be disengaged. As shown the slots 8, 11 cross one another and are formed by bending the rod 9. The crank pin 4 engages with a block 7 sliding in the transverse slot and of a length greater than the width of the longitudinal slot. The rod 9 is pivotally connected to the depthregulating lever 14. The plate 2 is normally locked by a roller 21 engaging in one or other of two diametrically opposite notches 16. The roller 21 is carried by a cranked spindle 18 controlled by a spring 22 and a cord 23 led to the tractor, the spring 22 normally holding the roller 21 in contact with the edge of the plate 2. When the roller is moved out of the notch 16 by pulling the cord 23 it releases the plate 2 and also an arm 26 that operates a spring-controlled clutch for engaging the plate 2 with a drum 24 on the wheel hub 25. After half a revolution the roller 21 enters the other notch 16 and moves the other arm 26 to disengage the clutch. The two wheel axles are connected together by an adjustable link 27 attached to arms 28.
Patent GB-690207-A (GB)
Title: Improvements in the manufacture of soap
IPC: C11D13/06
Filed: 1951-10-05
Abstract: Hydrosulphite-bleached soap is freed of its objectionable odour and also whitened by adding to the soap, before or after the hydrosulphite treatment, a small proportion of a water-soluble zinc compound.  The zinc compound is most effective if added to the soap in the presence of water and is preferably added at a stage up to and including the finishing stage; it may be added with the perfume or other ingredients.  The zinc compounds specified comprise zinc sulphate, chloride, acetate, borate, bromide, bromate, carbonate, chromate, nitrate and thiocyanate. The zinc compound is preferably added in an amount sufficient to provide 0.25 to 0.75 gram equivalents of zinc ion per gram equivalent of hydrosulphite ion used in the bleaching treatment, which latter is normally used in an amount of between 0.1 and 0.2 per cent by weight of the mass to be bleached.  The soaps may be the usual ammonium, sodium or potassium soaps of C12 to C24 fatty acids and abietic acid.  In an example sodium hydrosulphite was added during the washing of the soap with brine, the soap mass then acquiring a greyish colour and an objectionable odour.  After withdrawal of the lyes, the mass was boiled prior to finishing.  The specified quantity of zinc sulphate crystals was then added and the soap boil lost its greyish colour, became white, and also lost its odour.  After addition of a small quantity of caustic soda to restore the original alkalinity, the soap was finished in the usual manner.